I think the answer is C. 1,320
Answer:
Jeff's ribbon is, feet long
Step-by-step explanation:
Let J represents the length of Jeff ribbon and B represents the length of Bill ribbon.
As per the condition:
Jeff's ribbon is 3/7 the length of Bill's ribbon.
⇒ ......[1]
It is also given that: if both ribbons combined are 2 feet long.
⇒J + B = 2 ......[2]
Substitute the equation [1] into [2] we get;
Simplify:
Multiply both sides by we get;
ribbons
Substitute the value of B in equation [1] we have;
feet
Therefore, Jeff's ribbon is, feet long
We have that
<span>question 1
Add or subtract.
4m2 − 10m3 − 3m2 + 20m3
=(4m2-3m2)+(20m3-10m3)
=m2+10m3
the answer is the option
</span><span>B: m2 + 10m3
</span><span>Question 2:
Subtract. (9a3 + 6a2 − a) − (a3 + 6a − 3)
=(9a3-a3)+(6a2)+(-a-6a)+(-3)
=8a3+6a2-7a-3
the answer is the option
</span><span>B: 8a3 + 6a2 − 7a + 3
</span><span>Question 3:
A company distributes its product by train and by truck. The cost of distributing by train can be modeled as −0.06x2 + 35x − 135, and the cost of distributing by truck can be modeled as −0.03x2 + 29x − 165, where x is the number of tons of product distributed. Write a polynomial that represents the difference between the cost of distributing by train and the cost of distributing by truck.
we have that
[</span>the cost of distributing by train]-[the cost of distributing by truck]
=[−0.06x2 + 35x − 135]-[−0.03x2 + 29x − 165]
<span>=(-0.06x2+0.03x2)+(35x-29x)+(-135+165)
=-0.03x2+6x+30
the answer is the option
</span><span>C: −0.03x2 + 6x + 30
</span><span>
</span>
To figure out what a fraction is as a decimal u would do the top divided by the bottom
For this fraction it would look like this,
8 divided by 9 which would get you 0.88888888888
So your decimal is 0.889
Its not 0.888 because with decimals since a typical decimal is show as 2-3 numbers it would be rounded up to keep it as 3 numbers or less. so this would be 0.889 or if that doesnt work 0.888 with a line over the last 8.
Answer:
A
Step-by-step explanation:
2 meters=2000millimeters
50 centimeters=500 millimeters